CN107559264B - Accumulator flow experimental rig - Google Patents
Accumulator flow experimental rig Download PDFInfo
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- CN107559264B CN107559264B CN201710868552.8A CN201710868552A CN107559264B CN 107559264 B CN107559264 B CN 107559264B CN 201710868552 A CN201710868552 A CN 201710868552A CN 107559264 B CN107559264 B CN 107559264B
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Abstract
The invention belongs to accumulator technologies, disclose a kind of accumulator flow experimental rig, including fuel tank and pump assembly, measurement oil cylinder, stop oil cylinder, unloading overflow valve, control valve, first pressure gauge component, the first solenoid valve, control accumulator, second pressure gauge component and back pressure throttle valve；It measures and is equipped with measurement piston in oil cylinder, measure and displacement sensor is installed on piston；The end of measurement piston is fixed with block, stops to be equipped with blocking piston in oil cylinder, the end of piston is stopped to be equipped with the bar mobile for limit stop.Operation of the present invention is simple, by the way that displacement sensor and pressure gauge component is arranged in measurement oil cylinder, can completely record energy release process, realize the discharge characteristic detection in energy release process.
Description
Technical field
The invention belongs to accumulator technologies, and in particular to a kind of accumulator flow experimental rig.
Background technique
Accumulator is one of hydropneumatic system energy savings device.It is in due course the energy in system
Being changed into compression energy or position can store, and can be changed into the energy such as hydraulic or air pressure when system needs, and by compression energy or position
It is released after amount, mends feed system again.When system instantaneous pressure increases, the energy of this part is can be absorbed in it, to protect
It is normal to demonstrate,prove whole system pressure.
It during the manufacturing of accumulator, needs to test accumulator, it is therefore an objective to guarantee the production of accumulator
The working condition of quality and accumulator when in use.
When accumulator works, it can release energy after accumulation of energy, the process time to release energy is short and instantaneous flow is big, this
Process process very common and important when being accumulator work.The study found that in the above process, the discharge characteristic of accumulator
It is the important parameter of accumulator, but there is presently no the tests for measuring discharge characteristic of the accumulator in energy release process
Device.
Summary of the invention
The object of the present invention is to provide a kind of accumulator flow experimental rigs, are capable of measuring accumulator in energy release process
Instantaneous flow and total flow.
To realize the above-mentioned technical purpose, the scheme that the present invention uses is as follows:
A kind of accumulator flow experimental rig, including fuel tank and pump assembly, measurement oil cylinder, stop oil cylinder, unloading overflow valve,
Control valve, first pressure gauge component, the first solenoid valve, control accumulator, second pressure gauge component and back pressure throttle valve；The survey
It measures and is equipped with measurement piston in oil cylinder, displacement sensor is installed on the measurement piston；The measurement oil cylinder is measured piston point
For the first oil pocket and the second oil pocket, the fuel tank is by oil circuit connection pump assembly, the unloading overflow valve and for controlling oil circuit
The control valve series connection of on-off is control assembly, the oil outlet of the oil inlet connection pump assembly of the control assembly, the control group
The oil outlet connection first pressure gauge component of part simultaneously connects the first oil pocket, and first oil pocket passes through the first solenoid valve connection oil
Case；The second oil pocket connection control accumulator and second pressure gauge component, and be connected by back pressure throttle valve with fuel tank；It is described
The end of measurement piston is fixed with block, is equipped in the blocking oil cylinder and stops piston, and the end for stopping piston, which is equipped with, to be used
In the mobile bar of limit stop.
It further include check valve, the check valve is connected between control assembly and first pressure gauge component.
Further include the first reversal valve, connect pump assembly with fuel tank before the first reversal valve commutation, by pump machine after commutation
Group is connect with control valve.
It further include for controlling the second reversal valve for stopping piston motion direction, the blocking piston will stop oil cylinder to be divided into
Third oil pocket and the 4th oil pocket, second reversal valve are 3-position 4-way, and the oil circuit of the pump assembly outlet is sequentially connected second
Reversal valve and blocking oil cylinder.
The beneficial effects of the present invention are:
(1) accumulator to be measured access oil circuit can be tested, the position of access be it is adjacent with first pressure gauge component, it is to be measured
Accumulator is connected to measurement oil cylinder, and displacement sensor and pressure sensor, exergonic process is arranged in measurement oil cylinder
It completely has recorded, realizes and the discharge characteristic in energy release process is detected；
(2) it is utilized and oil cylinder is stopped to fill energy to realize, and control the exergonic time started, so that process control
Height, data reliability are strong；
(3) ingenious use the first reversal valve and the second reversal valve so that operating process becomes simple；
(4) control accumulator and back pressure throttle valve is utilized, the process to release energy can be adjusted, so that test
Data are more comprehensively and reliable.
Detailed description of the invention
Fig. 1 is hydraulic schematic diagram of the invention.
Label in figure respectively indicates: 11- fuel tank, 12- pump assembly, the first reversal valve of 13-, 14- unloading overflow valve, 15-
Control valve, 16- check valve, 17- accumulator to be measured, 18- first pressure gauge component, the first solenoid valve of 19-, the second reversal valve of 21-,
22- stops oil cylinder, and 221- stops piston, 222- third oil pocket, the 4th oil pocket of 223-, 23- bar, and 31- measures oil cylinder, 311- the
One oil pocket, the second oil pocket of 312-, 313- measurement piston, 32- control accumulator, 33- back pressure throttle valve, 34- second pressure gauge group
Part, 35- second solenoid valve, 36- block, 37- displacement sensor.
Specific embodiment
In order to make those skilled in the art that the present invention may be better understood, with reference to the accompanying drawings and examples to this hair
Bright technical solution further illustrates.
A kind of accumulator flow experimental rig, including fuel tank 11 and pump assembly 12 further include measurement oil cylinder 31, stop oil cylinder
22, unloading overflow valve 14, control valve 15, first pressure gauge component 18, the first solenoid valve 19, control accumulator 32, second pressure
Table component 34 and back pressure throttle valve 33 measure and are equipped with measurement piston 313 in oil cylinder 31, measure and are equipped with displacement on piston 313
Sensor 37, measurement oil cylinder are measured piston 313 and divide for the first oil pocket 311 and the second oil pocket；Fuel tank 11 is pumped by oil circuit connection
The outlet of unit 12, the outlet oil circuit connection unloading overflow valve 14 of pump assembly 12, unloading overflow valve 14 connects the first reversal valve
13, there are two the outlets of the first reversal valve, one of outlet connection fuel tank 11, another outlet pass sequentially through control valve 15,
Connect after check valve 16, the first oil pocket 311 and the first solenoid valve 19 with fuel tank 11, and check valve 16 and the first oil pocket 311 it
Between oil circuit be equipped with first pressure gauge component 18.
Second oil pocket 312 passes sequentially through control accumulator 32, back pressure throttle valve 33 is connect with fuel tank 11, the second oil pocket 312
It is also connect by second solenoid valve 35 with fuel tank 11, and is equipped on the oil circuit between the second oil pocket 312 and second solenoid valve 35
Second pressure gauge component 34.
Stop to be equipped in oil cylinder 22 and stop piston 221, stops piston 221 that oil cylinder 22 will be stopped to divide for 222 He of third oil pocket
4th oil pocket 223, stops the end of piston 221 to be equipped with bar 23, and the end of measurement piston 313 is fixed with block 36, bar 23
It is capable of the movement of limit stop 36 after mobile with blocking piston 221.
Second reversal valve 12 is the reversal valve of 3-position 4-way, and the outlet of pump assembly 12 is also connected with the P mouth of the second reversal valve 21,
The T mouth of second reversal valve 21 connects fuel tank；The A mouth of second reversal valve 21 is connect with the third oil pocket 222 of oil cylinder 22 is stopped, and second
The B mouth of reversal valve is connect with the 4th oil pocket 223 of oil cylinder 22 is stopped.
In above-mentioned oil circuit, each settable shut-off valve in suitable position, to carry out the control of part to oil circuit.
When test, the position that accumulator 17 to be measured accesses is adjacent with first pressure gauge component 18, so that first pressure gauge group
Part 18 can accurate response go out the pressure of accumulator 17 to be measured.Pressurising is carried out to accumulator 17 to be measured first, i.e. starting pump assembly
12, it opens control valve 15 (i.e. YV2 obtains electric), closes the first solenoid valve 19, be pressurized oil circuit, that is, realize to accumulator 17 to be measured
Pressurising.In the process, guarantee that bar 23 blocks block 36, moved with limiting the measurement piston 313 or so of measurement oil cylinder 31
It is dynamic.First pressure gauge component 18 is used to show the pressure of accumulator to be measured, when pressure reaches test requirements document, by the first reversal valve
13 switch over (YV1 obtains electric), can stop pressurising moment, and disconnect control valve 15 (i.e. YV2 power loss).Pass through check valve at this time
16 can guarantee that the pressure in accumulator 17 to be measured is stablized.At this point, detection process can be started, it is first connected to the second reversal valve 21
(YV3 obtains electric), then switch the first reversal valve 13 (i.e. YV1 power loss), oil is pressed into resistance by the second reversal valve 21 by pump assembly 12
It keeps off in the 4th cavity of oil cylinder 22, make the blocking piston 221 for stopping oil cylinder 22 and bar 23 while moving up, at this point, bar
23 no longer limit stops 36 are mobile, and accumulator 17 to be measured starts to release energy, and under the effect of the pressure, measure the measurement of oil cylinder 31
Piston 313 slides to the right.In the process, displacement sensor 37 all records parameter when measuring the movement of piston 313, and
It imports in computer；Second pressure gauge component 34 records pressure parameter simultaneously.It keeps second solenoid valve 35 to be in close
State, the hydraulic oil measured in the second oil pocket of oil cylinder 31 flow back to fuel tank 11 after back pressure throttle valve 33.When test, by adjusting
The flow of back pressure throttle valve 33 is configured different accumulators to be measured with the preset pressure for controlling accumulator 32.
Above-mentioned all pressure, flow and displacement parameter, which can be included in computer, to be analyzed and processed, and the second pressure is passed through
The instantaneous pressure of the direct reaction energy release process of power table component, by the instantaneous movement speed (displacement sensor for measuring piston
37 record) and the geometric parameter of the second oil pocket can calculate the instantaneous flow in energy release process, by measure piston it is total
The geometric parameter of displacement and the second oil pocket can calculate the total flow in energy release process, finally obtain energy release process
The discharge characteristic of accumulator 17 to be measured.
Claims (4)
1. a kind of accumulator flow experimental rig, including fuel tank (11) and pump assembly (12), it is characterised in that: further include measurement oil
Cylinder (31) stops oil cylinder (22), unloading overflow valve (14), control valve (15), first pressure gauge component (18), the first solenoid valve
(19), accumulator (32), second pressure gauge component (34) and back pressure throttle valve (33) are controlled；It is equipped in the measurement oil cylinder (31)
It measures piston (313), displacement sensor (37) is installed on the measurement piston (313)；The measurement oil cylinder (31) is measured
Piston (313) is divided into the first oil pocket (311) and the second oil pocket (312), and the fuel tank (11) passes through oil circuit connection pump assembly (12),
The unloading overflow valve (14) and for controlling oil circuit on-off control valve (15) series connection be control assembly, the control assembly
Oil inlet connects the oil outlet of pump assembly (12), and oil outlet connection first pressure gauge component (18) of the control assembly simultaneously connects
It connects the first oil pocket (311), first oil pocket (311) passes through the first solenoid valve (19) connection fuel tank (11)；Second oil pocket
(312) connection control accumulator (32) and second pressure gauge component (34), and pass through back pressure throttle valve (33) and fuel tank (11) phase
Even；The end of measurement piston (313) is fixed with block (36), is equipped in the blocking oil cylinder (22) and is stopped piston (221),
The end for stopping piston (221) is equipped with the bar (23) mobile for limit stop (36).
2. accumulator flow experimental rig according to claim 1, it is characterised in that: it further include check valve (16), it is described
Check valve (16) is connected between control assembly and first pressure gauge component (18).
3. accumulator flow experimental rig according to claim 1, it is characterised in that: it further include the first reversal valve (13),
Pump assembly (12) is connect with fuel tank (11) before first reversal valve (13) commutation, by pump assembly (12) and control valve after commutation
(15) it connects.
4. accumulator flow experimental rig according to claim 1 or 2 or 3, it is characterised in that: further include for controlling resistance
Second reversal valve (21) of piston (221) direction of motion is kept off, the blocking piston (221) will stop oil cylinder (22) to be divided into third oil
Chamber (222) and the 4th oil pocket (223), second reversal valve (21) are 3-position 4-way, the oil circuit of pump assembly (12) outlet
It is sequentially connected the second reversal valve (21) and stops oil cylinder (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710868552.8A CN107559264B (en) | 2017-09-22 | 2017-09-22 | Accumulator flow experimental rig |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710868552.8A CN107559264B (en) | 2017-09-22 | 2017-09-22 | Accumulator flow experimental rig |
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| Publication Number | Publication Date |
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| CN107559264A CN107559264A (en) | 2018-01-09 |
| CN107559264B true CN107559264B (en) | 2019-11-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710868552.8A Active CN107559264B (en) | 2017-09-22 | 2017-09-22 | Accumulator flow experimental rig |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108374814B (en) * | 2018-01-23 | 2020-08-14 | 山河智能装备股份有限公司 | Energy accumulator test bed and control method thereof |
Citations (7)
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|---|---|---|---|---|
| JPH02278137A (en) * | 1989-04-19 | 1990-11-14 | Kobe Steel Ltd | Method and apparatus for testing characteristic of hydraulic valve |
| CN102297181A (en) * | 2010-11-18 | 2011-12-28 | 重庆大学 | Hydraulic control loop of automatic transmission hydraulic system performance test bed |
| CN202140374U (en) * | 2011-05-05 | 2012-02-08 | 刘瑞川 | Multifunctional fatigue testing machine for energy accumulator |
| CN103018034A (en) * | 2012-12-25 | 2013-04-03 | 青岛四方车辆研究所有限公司 | Car coupler coupling test bed |
| CN203176062U (en) * | 2012-12-26 | 2013-09-04 | 北京林克富华技术开发有限公司 | Safety function detecting device of electrohydraulic actuator |
| CN104048824A (en) * | 2014-07-09 | 2014-09-17 | 安徽江淮汽车股份有限公司 | Performance testing device for driving piston oil seal of dual-clutch transmission |
| CN106762890A (en) * | 2017-01-23 | 2017-05-31 | 中南大学 | A kind of test bed hydraulic control system of multifunction hydraulic |
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2017
- 2017-09-22 CN CN201710868552.8A patent/CN107559264B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02278137A (en) * | 1989-04-19 | 1990-11-14 | Kobe Steel Ltd | Method and apparatus for testing characteristic of hydraulic valve |
| CN102297181A (en) * | 2010-11-18 | 2011-12-28 | 重庆大学 | Hydraulic control loop of automatic transmission hydraulic system performance test bed |
| CN202140374U (en) * | 2011-05-05 | 2012-02-08 | 刘瑞川 | Multifunctional fatigue testing machine for energy accumulator |
| CN103018034A (en) * | 2012-12-25 | 2013-04-03 | 青岛四方车辆研究所有限公司 | Car coupler coupling test bed |
| CN203176062U (en) * | 2012-12-26 | 2013-09-04 | 北京林克富华技术开发有限公司 | Safety function detecting device of electrohydraulic actuator |
| CN104048824A (en) * | 2014-07-09 | 2014-09-17 | 安徽江淮汽车股份有限公司 | Performance testing device for driving piston oil seal of dual-clutch transmission |
| CN106762890A (en) * | 2017-01-23 | 2017-05-31 | 中南大学 | A kind of test bed hydraulic control system of multifunction hydraulic |
Non-Patent Citations (1)
| Title |
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| 蓄能器变压力供油电液位置控制系统的复合补偿控制;郭秦阳，施光林，何常玉，王冬梅;《液压与气动》;20160930;第1-9页 * |
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